<u># 用法</u>
<em>指定模型对称</em>
<u># 语法</u>
<em>Object3D</em>.<b>name</b> = <em>'my3d'</em>
<u># 示例</u>
<em>const</em> <s>mesh</s> =  <u>new</u> <q>Three</q>.<q>Mesh( )</q>
<s>mesh</s>.<b>name</b> = <em>'mesh'</em>
<em>const</em> <s>name</s> = <em>scene</em>.<q>getObjectByName</q>(<s>'mesh'</s>)